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5 Development of a Simulation-based Methodology …
energy state, containing all required information regarding the consumption behavior while the machine is lingering in a certain machine state. For this, continuous
variables for the energy state are created by considering the ratio of the passed
time in a state and the remaining time. Those variables are on the one hand required to be able to picture the consumption behavior at any moment in time, even
in between single events of the event-based part of the simulation model. On the
other hand, they are used for the optimized timing of machine startups in the production line, as they allow the calculation of the remaining time until a waiting
machine has to be ready for its production process.
Figure 5.12 Energy Component
The energy component enables the depiction of energy-relevant information
and thus forms the basis for influencing and optimizing energy-relevant production parameters. Summarizing, the energy component contains the SD energy
flow, the energy state as well as the energy consumption parameters (Figure 5.12).
5.3.4 Interaction Point Definition
The three presented sub-models describe different aspects of a production. In
order to combine the three models to a holistic production simulation, it is required to define all necessary interfaces. As already indicated in sections 5.3.2 and
5.3.3, the process and the energy component are connected via the machine and
5 Development of a Simulation-based Methodology …
energy state, containing all required information regarding the consumption behavior while the machine is lingering in a certain machine state. For this, continuous
variables for the energy state are created by considering the ratio of the passed
time in a state and the remaining time. Those variables are on the one hand required to be able to picture the consumption behavior at any moment in time, even
in between single events of the event-based part of the simulation model. On the
other hand, they are used for the optimized timing of machine startups in the production line, as they allow the calculation of the remaining time until a waiting
machine has to be ready for its production process.
Figure 5.12 Energy Component
The energy component enables the depiction of energy-relevant information
and thus forms the basis for influencing and optimizing energy-relevant production parameters. Summarizing, the energy component contains the SD energy
flow, the energy state as well as the energy consumption parameters (Figure 5.12).
5.3.4 Interaction Point Definition
The three presented sub-models describe different aspects of a production. In
order to combine the three models to a holistic production simulation, it is required to define all necessary interfaces. As already indicated in sections 5.3.2 and
5.3.3, the process and the energy component are connected via the machine and